Electrothermal feedback in superconducting nanowire single-photon detectors
By A. Kerman, Joel K. W. Yang, R. Molnar, E. Dauler, K. Berggren. 2008
187 citations recorded by the source corpus.
We investigate the role of electrothermal feedback in the operation of superconducting nanowire single-photon detectors (SNSPDs). It is found that the desired mode of operation for SNSPDs is only achieved if this feedback is unstable, which happens naturally through the slow electrical response associated with their relatively large kinetic inductance. If this response is sped up in an effort to increase the device count rate, the electrothermal feedback becomes stable and results in an effect known as latching, where the device is locked in a resistive state and can no longer detect photons. We present a set of experiments which elucidate this effect and a simple model which quantitatively explains the results.
Subfields: Artificial Intelligence, Astronomy and Astrophysics, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/3e6e4abf746e7cca23d305de446c2d76c017729d
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Citations in the corpus
- Superconducting nanowire single-photon detectors for quantum information (2020, methodology): “28 [66] Kerman A J, Yang J K W, Molnar R J, Dauler E A & Berggren K K.”
- Superconducting nanowire single-photon detectors: A perspective on evolution, state-of-the-art, future developments, and applications (2021, background): “101 While models for step (I), (IV), and (V) can be used to predict and develop successful designs, models for step (II) and (III) are missing such capabilities.”
- Waveguide-integrated superconducting nanowire single-photon detectors (2018, methodology): “On the other hand, an excessive increase of the wire width might limit the internal quantum efficiency of the device [111] or lead to a strong reduction of the device kinetic inductance, thus increasing the probability of observing latching [42].”